Riddle

A book costs $1 plus half its price. How much does it cost?

Choose an answer

A.$1.50
B.$3
C.$1
D.$2
Hint: It's a word with 0 letters, starting with "$".

Answer

$2

Why this is the answer

If the price is P, then P = 1 + P/2, which solves to P = 2.

This riddle is filed under How, What, Why Riddles and rated Medium.